Across
- 3. A black fossil fuel dug out of the ground
- 5. A fossil fuel used for heating and cooking
- 6. Energy sources that will not run out, such as wind and solar
- 8. Energy that comes from the Sun
- 10. Energy made from plants or animal waste
Down
- 1. A word for fuels such as coal, oil, and gas
- 2. Fuels formed from ancient plants and animals
- 4. Energy made using moving water
- 7. Energy made by splitting atoms
- 9. Energy made by moving air turning turbines